Owning both the Nyko Perfect Shot and the zapper, I'd say go with the Nyko. About the only thing I play on the Wii is rail shooters, so it works out well for me. Now, if you play a FPS the Zapper may work a touch better because the Zapper is designed to hold the Nunchuck as well as the Wii-mote. The Nyko is also cheaper, by as much as $10 depending on where you by it. I'd go with that one first at any rate.